Frequency tunable low ripple and fast response on-chip DC–DC converter for DVFS
| Autor: | K. Jagannadha Naidu, Harish M. Kittur |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Forward converter Engineering business.industry Ćuk converter Buck–boost converter Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology Switched capacitor 01 natural sciences 020202 computer hardware & architecture Surfaces Coatings and Films Hardware and Architecture Duty cycle 0103 physical sciences Signal Processing Boost converter Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering Electronic engineering business Frequency scaling Voltage converter |
| Zdroj: | Analog Integrated Circuits and Signal Processing. 90:639-644 |
| ISSN: | 1573-1979 0925-1030 |
| DOI: | 10.1007/s10470-016-0905-z |
| Popis: | Dynamic voltage and frequency scaling (DVFS) is an efficient method to reduce the power consumption in system on-chip. To support DVFS, multiple supply voltages are generated based on different work load frequencies and currents using on-chip DC---DC voltage converter. In this paper a frequency tunable multiple output voltage switched capacitor based dc---dc converter is presented. An analog to digital converter and phase controller is used in the feedback to change the switching frequency and duty cycle of the converter. An input voltage of 1.8 V is converted to 0.6 and 0.8 V for low and high signal frequency respectively. The proposed 2-phase switched capacitor architecture with gain setting of 1:2 is designed with the 90 nm technology. An output ripple of 45 mV is observed and the maximum transient response time of the converter is 17.3 ns (= 58 MHz). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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